CN215909261U

CN215909261U - Grille and air conditioner outdoor unit with same

Info

Publication number: CN215909261U
Application number: CN202121138180.1U
Authority: CN
Inventors: 程守炤; 覃万翔; 齐凤
Original assignee: Guangdong Sunwill Precising Plastic Co Ltd
Current assignee: Guangdong Sunwill Precising Plastic Co Ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2022-02-25
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a grille and an air conditioner outdoor unit with the same, wherein the grille comprises an outer frame body, a central plate, an inner ring grille and an outer ring grille, wherein the central plate is positioned in the outer frame body; the inner ring grids are arranged outside the central plate; the outer ring grating is arranged between the inner ring grating and the outer frame body; the outer ring grating comprises a plurality of arc-shaped strips which are circumferentially arranged outside the inner ring grating, the inner concave surfaces of the arc-shaped strips face the outside of the outer frame, the included angle between the outlet air guide surface of each arc-shaped strip and the horizontal plane is alpha, the included angle between the inlet lee side surface of each arc-shaped strip and the horizontal plane is defined as beta, and the beta is larger than alpha. The beta of the utility model is larger than alpha, so that the outer ring grating is made into a guide vane form, the outlet airflow angle of the blades in the air conditioner outer machine is consistent with the inlet angle of the guide vanes of the outer ring grating, the drainage effect is achieved, the flowing gas can not directly impact on the grating, the flow loss of the fan is reduced, and the efficiency of the fan is improved.

Description

Grille and air conditioner outdoor unit with same

Technical Field

The utility model relates to the field of air supply equipment, in particular to a grille and an air conditioner outdoor unit with the grille.

Background

When the axial flow fan operates, the speed distribution is gradually increased from the blade root to the blade top, and the over-fast airflow at the blade top flows out from the tail part of the blade and directly impacts the grating, so that the loss of the air volume can be caused, and the abnormal sound of the airflow impacting the grating can also appear.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a grille for avoiding air quantity loss and reducing noise.

The utility model also provides an air conditioner outdoor unit with the grille.

The grating according to the embodiment of the first aspect of the utility model comprises an outer frame body, a central plate, an inner ring grating and an outer ring grating, wherein the central plate is positioned in the outer frame body; the inner ring grating is arranged outside the central plate; the outer ring grating is arranged between the inner ring grating and the outer frame body; the outer ring grating comprises a plurality of arc-shaped strips which are circumferentially arranged outside the inner ring grating, the inner concave surfaces of the arc-shaped strips face the outside of the outer frame, the included angle between the outlet air guide surface of the arc-shaped strips and the horizontal plane is alpha, the included angle between the inlet lee side of the arc-shaped strips and the horizontal plane is defined as beta, and the beta is larger than the alpha.

The grid according to the embodiment of the utility model has at least the following technical effects: beta is larger than alpha, so that the outer ring grating is made into a guide vane form, the outlet airflow angle of the blades in the air conditioner outer machine is consistent with the inlet angle of the guide vanes of the outer ring grating, the drainage effect is achieved, the flowing gas cannot directly impact on the grating, the flow loss of the fan is reduced, and the efficiency of the fan is improved.

According to some embodiments of the utility model, the angle between the outlet wind guiding surface of the arc-shaped strip and the inlet lee surface of the arc-shaped strip is gamma, and gamma is more than or equal to 15 degrees and less than or equal to 30 degrees.

According to some embodiments of the utility model, the outer diameter of the inner ring grating is D1, the outer diameter of the outer frame is D2, and 0.6 ≦ D1/D2 < 1.

According to some embodiments of the utility model, the distance between two of the arc-shaped strips is L, and L is more than or equal to 7mm and less than 9.5 mm.

According to some embodiments of the utility model, the inner ring grate comprises at least two or more annular ribs arranged sequentially and concentrically between the central plate and the outer ring grate, and several radial ribs connecting the two annular ribs.

According to some embodiments of the utility model, the annular rib has a first cross section along a circumferential direction thereof, the first cross section is perpendicular to a horizontal plane, one end of the first cross section away from an external unit of an air conditioner is rounded, and the other end of the first cross section is arrowhead-shaped.

An air conditioner outdoor unit according to a second aspect of the present invention includes the above-described grille.

The air conditioner outdoor unit provided by the embodiment of the utility model at least has the following beneficial effects: by using the grille, the gas flowing out of the blades can be prevented from directly impacting on the grille, the flow loss of the fan is reduced, and the efficiency of the fan is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic top view of a grid according to an embodiment of the present invention;

FIG. 2 is a schematic view of the outer frame of the grating;

FIG. 3 is an enlarged view of the structure at B in FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

fig. 5 is an enlarged structural view at C in fig. 4.

Reference numerals: the outer frame body 100, the center plate 200, the inner ring grating 300, the annular rib 310, the first section 311, the radial rib 320, the outer ring grating 400, the arc-shaped bar 410, and the inner concave surface 411.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, a plurality of means is two or more, and the terms greater than, less than, more than, etc. are understood to exclude the essential numbers, and the terms greater than, less than, etc. are understood to include the essential numbers. It should be understood that the description related to the orientation, such as the upper, lower, etc., indicates an orientation or positional relationship based on that shown in the drawings. This is done solely for the purpose of facilitating the description of the utility model and simplifying the description without indicating or implying that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and therefore should not be construed as limiting the utility model.

In the description of the present invention, unless otherwise specifically limited, installation and connection terms should be construed broadly, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in consideration of the technical details.

Referring to fig. 1, the grating according to the embodiment of the present invention includes an outer frame 100, a center plate 200, an inner-ring grating 300, and an outer-ring grating 400, the center plate 200 being positioned within the outer frame 100; the inner grill 300 is installed outside the center plate 200; the outer ring grill 400 is installed between the inner ring grill 300 and the outer frame 100; the outer-ring grille 400 includes a plurality of arc-shaped strips 410 circumferentially arranged outside the inner-ring grille 300, the inner concave surfaces 411 of the arc-shaped strips 410 face the outside of the outer frame 100, as shown in fig. 2 and 3, an included angle between the outlet air guide surface of the arc-shaped strips 410 and the horizontal plane is α, an included angle between the inlet leeward surface of the arc-shaped strips 410 and the horizontal plane is defined as β, and β is greater than α.

For example, a section is taken along the arc-shaped line of the arc-shaped strip 410, the section is vertical to the horizontal plane, and the section is a gradually concave arc surface, so that the structure further enables the deflection airflow flowing out of the air conditioner outdoor unit to be rotated to the arc-shaped strip 410 as much as possible, the drainage effect is achieved, the flowing gas is prevented from directly impacting the grating, the flowing loss of the fan is reduced, and the efficiency of the fan is improved.

In some embodiments of the present invention, as shown in fig. 3, the angle between the outlet wind guiding surface of the arc-shaped strip 410 and the inlet lee surface of the arc-shaped strip 410 is γ, and γ is greater than or equal to 15 ° and less than or equal to 30 °. Any degree in the range is selected, and the drainage effect is optimal.

In a further embodiment of the present invention, as shown in FIG. 1, the outer diameter of the inner ring grating 300 is D1, the outer diameter of the outer frame 100 is D2, and D1/D2 is 0.6 ≦ 1. Any value in the range is selected, and the drainage effect is optimal.

In a further embodiment of the present invention, as shown in FIG. 1, the distance between the two arc-shaped strips 410 is L, 7mm L < 9.5 mm. Any value in the range is selected, and the drainage effect is optimal.

In some embodiments of the present invention, as shown in fig. 1, the inner-wrap grill 300 includes at least two or more annular ribs 310 sequentially and concentrically arranged between the center plate 200 and the outer-wrap grill 400, and a plurality of radial ribs 320 connecting the two annular ribs 310.

In a further embodiment of the present invention, as shown in fig. 1, the annular rib 310 is a first cross section 311 along a circumferential direction thereof, as shown in fig. 4 and 5, the first cross section 311 is perpendicular to a horizontal plane, one end of the first cross section 311 away from the air conditioner external unit is round, and the other end of the first cross section 311 near the fan blade of the air conditioner external unit is arrow-shaped. Because the end of the annular rib 310 close to the fan blade is in an arrow shape, the preferable scheme is that the thickness of the tip of the end is smaller, and the tip of the end is also made into arc transition, the wind outlet resistance of the wind quantity passing through the inner side of the inner ring grille 300 is smaller when the fan blade exhausts; and the other end of the inner ring grille 300 is far away from the fan blade and is in a round head shape, so that the resistance of the inner ring grille 300 to wind is further reduced, the outlet loss is reduced, the wind volume of the wind exhaust is increased, the noise is low, the round head shape can also effectively prevent hands from being injured in use, the use is safer, and the structure is firmer.

An outdoor unit of an air conditioner according to another embodiment of the present invention includes the above-described grill. By using the grille, the gas flowing out of the blades can be prevented from directly impacting on the grille, the flow loss of the fan is reduced, and the efficiency of the fan is improved.

In the description herein, references to the description of "some embodiments" or "what is conceivable" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A grid, comprising:

an outer frame body;

the central plate is positioned in the outer frame body;

the inner ring grating is arranged outside the central plate;

the outer ring grating is arranged between the inner ring grating and the outer frame body; the outer ring grating comprises a plurality of arc-shaped strips which are circumferentially arranged outside the inner ring grating, the inner concave surfaces of the arc-shaped strips face the outside of the outer frame, the included angle between the outlet air guide surface of the arc-shaped strips and the horizontal plane is alpha, the included angle between the inlet lee side of the arc-shaped strips and the horizontal plane is defined as beta, and the beta is larger than the alpha.

2. The grid according to claim 1, wherein: the included angle between the outlet air guide surface of the arc-shaped strip and the inlet lee surface of the arc-shaped strip is gamma, and gamma is more than or equal to 15 degrees and less than or equal to 30 degrees.

3. The grid according to claim 1 or 2, wherein: the outer diameter of the inner ring grating is D1, the outer diameter of the outer frame body is D2, and D1/D2 is not less than 0.6 and is less than 1.

4. The grid according to claim 2, wherein: the distance between the two arc-shaped strips is L, and L is more than or equal to 7mm and less than 9.5 mm.

5. The grid according to claim 1, wherein: the inner ring grating includes at least two or more annular ribs sequentially and concentrically arranged between the center plate and the outer ring grating, and a plurality of radial ribs connecting the two annular ribs.

6. The grid according to claim 5, wherein: the annular rib takes a first section along the circumferential direction of the annular rib, the first section is perpendicular to the horizontal plane, one end, away from the air conditioner external unit, of the first section is round-headed, and the other end of the first section is arrow-headed.

7. An outdoor unit for an air conditioner, comprising the grille of any one of claims 1 to 6.